Unlike many other Manga movies good dubbing, the fans will still prefer the original Japanese sound. The main guard sounds like Arnold Schwarzenegger. I found the princess kind of annoying sometimes (voice).

Here are some screenshots:

Official:

"...One of the Greatest Adventure Movies of All Time..."
-- Steven Spielberg

FROM THE OSCAR™-WINNING DIRECTOR OF “SPIRITED AWAY” --
IDT ENTERTAINMENT’S MANGA ENTERTAINMENT OPENS THE
“CASTLE OF CAGLIOSTRO” SPECIAL EDITION DVD

Chicago, IL -- Before he enthralled audiences all over the world with such magical animated features as Howl's Moving Castle, Princess Mononoke and the 2001 Academy-Award™ winning Spirited Away, renowned Japanese animator Hayao Miyazaki held audiences spellbound in 1979 with his first feature-length animated film, The Castle of Cagliostro. Now, Manga Entertainment, an IDT Entertainment company, proudly presents The Castle of Cagliostro Special Edition DVD, digitally remastered with Dolby Digital 5.1 sound, available August 29th at the enchanting SRP of $24.98. Pre-book is July 19th.

The Castle of Cagliostro (also known as Lupin III: Cagliostro No Shiro) spins the fantastic tale of master thief Lupin III, traveling to the European province of Cagliostro (pronounced “Cal-ee-os-tro”) to pull off a huge job. When a chance encounter with the Princess Clarice, engaged to the evil Count Cagliostro, distracts him from his original plans, he also stumbles upon a secret kept for over 500 years and now struggles to keep one step ahead of Cagliostro. Torn between his professional objectives and his increasing affections for Princess Clarice, Lupin is locked in a race to solve the mystery of a fabulous hidden treasure, dating back to the Renaissance...

Filled with Miyazaki's trademark rich animation and imaginative storytelling, The Castle of Cagliostro Special Edition DVD takes the experience even further with a treasure chest of bonus features including: